The swiftness, speed and tact of hunting with eagles is pretty amazing to watch. But the more than 6,000-year-old tradition in Mongolia is slowly disappearing.

Eagle hunting is used by the Kazakh ethnic group. It helps supply food in winter, is used as a coming of age ritual for boys and a sport in an annual festival.

The Golden Eagle Festival has recently drawn in tourists to watch a series of competitions unfold. Tourism in the area has caused tightened wildlife preservation, but that's only part of the reason eagle hunting isn't as widely used.